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Title: Convergence of Density-Matrix Expansions for Nuclear Interactions

Abstract

We extend density-matrix expansions in nuclei to higher orders in derivatives of densities and test their convergence properties. The expansions allow for converting the interaction energies characteristic to finite- and short-range nuclear effective forces into quasilocal density functionals. We also propose a new type of expansion that has excellent convergence properties when benchmarked against the binding energies obtained for the Gogny interaction.

Authors:
 [1];  [1]
  1. Department of Physics, Post Office Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)
Publication Date:
OSTI Identifier:
21466964
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 12; Other Information: DOI: 10.1103/PhysRevLett.105.122501; (c) 2010 American Institute of Physics; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BINDING ENERGY; CONVERGENCE; DENSITY MATRIX; EXPANSION; FUNCTIONALS; INTERACTION RANGE; NUCLEAR FORCES; NUCLEAR POTENTIAL; NUCLEI; DISTANCE; ENERGY; FUNCTIONS; MATRICES; POTENTIALS

Citation Formats

Carlsson, B G, Dobaczewski, J, and Institute of Theoretical Physics, University of Warsaw, Hoza 69, PL-00-681 Warsaw. Convergence of Density-Matrix Expansions for Nuclear Interactions. United States: N. p., 2010. Web. doi:10.1103/PHYSREVLETT.105.122501.
Carlsson, B G, Dobaczewski, J, & Institute of Theoretical Physics, University of Warsaw, Hoza 69, PL-00-681 Warsaw. Convergence of Density-Matrix Expansions for Nuclear Interactions. United States. doi:10.1103/PHYSREVLETT.105.122501.
Carlsson, B G, Dobaczewski, J, and Institute of Theoretical Physics, University of Warsaw, Hoza 69, PL-00-681 Warsaw. Fri . "Convergence of Density-Matrix Expansions for Nuclear Interactions". United States. doi:10.1103/PHYSREVLETT.105.122501.
@article{osti_21466964,
title = {Convergence of Density-Matrix Expansions for Nuclear Interactions},
author = {Carlsson, B G and Dobaczewski, J and Institute of Theoretical Physics, University of Warsaw, Hoza 69, PL-00-681 Warsaw},
abstractNote = {We extend density-matrix expansions in nuclei to higher orders in derivatives of densities and test their convergence properties. The expansions allow for converting the interaction energies characteristic to finite- and short-range nuclear effective forces into quasilocal density functionals. We also propose a new type of expansion that has excellent convergence properties when benchmarked against the binding energies obtained for the Gogny interaction.},
doi = {10.1103/PHYSREVLETT.105.122501},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 12,
volume = 105,
place = {United States},
year = {2010},
month = {9}
}